The Tube,buffer,landing Gear, cataloged under National Stock Number 1620-00-074-2583, is classified within Federal Supply Class 1620 (Aircraft Landing Gear Components) of the Aircraft Components and Accessories group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1620-00-074-2583 |
| Primary Part Number | 53-41412-3 |
| Item Name | Tube,buffer,landing Gear |
| FSC / FSG | 1620 / 16 — Aircraft Landing Gear Components |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Overall Diameter | 3.865 INCHES MINIMUM AND 3.867 INCHES MAXIMUM IN |
| General Characteristics Item Description | BORE THRU 3.545 IN. MIN TO 3.547 IN. MAX DIA; ONE SLOT THRU 0.473 IN. MIN TO 0.475 IN. MAX WIDTH BY 0.780 IN. LG, 0.085 IN. MIN TO 0.087 IN. MAX FROM ONE END; HEAT TREAT 220000 TO 240000 PSI IN |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 53-41412-3 PRIMARY | The Boeing Company Div Defense (USA) |
| 53-41412-3 | Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company (USA) |
| 53-41412-3 | Nasco Aircraft Brake, Inc. Dba Nasco Aircraft Brake Inc Div Nasco (USA) |
| 53-41412-3 | Kitco Llc (USA) |
| Reference | Meaning |
|---|---|
| 2571563 | 5/9 Secondary reference Goodrich Corporation Div Advanced Structures Landing Systems |
| 2571563 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St) |
| 2571563 | 5/9 Secondary reference Goodrich Corp Dba Goodrich Corp |
| 1773-536 | 5/9 Secondary reference Goodrich Corporation Div Advanced Structures Landing Systems |
NSN 1620-00-074-2583 is a Tube,buffer,landing Gear, manufactured by The Boeing Company Div Defense, classified under FSC 1620, Aircraft Landing Gear Components. Status: active.
NSN 1620-00-074-2583 has 4 manufacturer part numbers on file: 53-41412-3 (The Boeing Company Div Defense), 53-41412-3 (Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company), 53-41412-3 (Nasco Aircraft Brake, Inc. Dba Nasco Aircraft Brake Inc Div Nasco), 53-41412-3 (Kitco Llc).
1 possible match (shared part number, not a government interchangeability claim): 2520-01-615-5113. Verify interchangeability with system specifications before substitution.
Key specifications for 53-41412-3: Overall Diameter: 3.865 INCHES MINIMUM AND 3.867 INCHES MAXIMUM IN; General Characteristics Item Description: BORE THRU 3.545 IN. MIN TO 3.547 IN. MAX DIA; ONE SLOT THRU 0.473 IN. MIN TO 0.475 IN. MAX WIDTH BY 0.780 IN. LG, 0.085 IN. MIN TO 0.087 IN. MAX FROM ONE END; HEAT TREAT 220000 TO 240000 PSI IN; Overall Length: 1.750 INCHES NOMINAL IN; Material: STEEL. 3 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.